diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-13 02:05:30 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-13 02:05:30 +0300 |
| commit | 38814330fedd778edffcabe0c8cb462ee365782e (patch) | |
| tree | 9b12740324f753a82cd8e5fa6061383732941e64 /Documentation/devicetree/bindings | |
| parent | 42bff4d0f9b9c8b669c5cef25c5116f41eb45c6b (diff) | |
| parent | 716089b417cf98d01f0dc1b39f9c47e1d7b4c965 (diff) | |
| download | linux-38814330fedd778edffcabe0c8cb462ee365782e.tar.xz | |
Merge tag 'devicetree-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Convert FPGA bridge, all TPMs (finally), and Rockchip HDMI bindings
to schemas
- Improvements in Samsung GPU schemas
- A few more cases of dropping unneeded quotes in schemas
- Merge QCom idle-states txt binding into common idle-states schema
- Add X1E80100, SM8650, SM8650, and SDX75 SoCs to QCom Power Domain
Controller
- Add NXP i.mx8dl to SCU PD
- Add synaptics r63353 panel controller
- Clarify the wording around the use of 'wakeup-source' property
- Add a DTS coding style doc
- Add smi vendor prefix
- Fix DT_SCHEMA_FILES incorrect matching of paths outside the kernel
tree
- Disable sysfb (e.g. EFI FB) when simple-framebuffer node is present
- Fix double free in of_parse_phandle_with_args_map()
- A couple of kerneldoc fixes
* tag 'devicetree-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (37 commits)
of: unittest: Fix of_count_phandle_with_args() expected value message
dt-bindings: fpga: altera: Convert bridge bindings to yaml
dt-bindings: fpga: Convert bridge binding to yaml
dt-bindings: vendor-prefixes: Add smi
dt-bindings: power: Clarify wording for wakeup-source property
of: Fix double free in of_parse_phandle_with_args_map
dt-bindings: ignore paths outside kernel for DT_SCHEMA_FILES
drivers: of: Fixed kernel doc warning
dt-bindings: tpm: Document Microsoft fTPM bindings
dt-bindings: tpm: Convert IBM vTPM bindings to DT schema
dt-bindings: tpm: Convert Google Cr50 bindings to DT schema
dt-bindings: tpm: Consolidate TCG TIS bindings
dt-bindings: display: rockchip,inno-hdmi: Document RK3128 compatible
dt-bindings: arm: Add remote etm dt-binding
dt-bindings: mmc: sdhci-pxa: Fix 'regs' typo
media: dt-bindings: samsung,s5p-mfc: Fix iommu properties schemas
dt-bindings: display: panel: Add synaptics r63353 panel controller
dt-bindings: arm: merge qcom,idle-state with idle-state
dt-bindings: drm: rockchip: convert inno_hdmi-rockchip.txt to yaml
dt-bindings: cache: qcom,llcc: correct QDU1000 reg entries
...
Diffstat (limited to 'Documentation/devicetree/bindings')
59 files changed, 1356 insertions, 564 deletions
diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile index 3e886194b043..2323fd5b7cda 100644 --- a/Documentation/devicetree/bindings/Makefile +++ b/Documentation/devicetree/bindings/Makefile @@ -28,7 +28,7 @@ $(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \ -name 'processed-schema*' \) -find_cmd = $(find_all_cmd) | grep -F -e "$(subst :," -e ",$(DT_SCHEMA_FILES))" +find_cmd = $(find_all_cmd) | sed 's|^$(srctree)/$(src)/||' | grep -F -e "$(subst :," -e ",$(DT_SCHEMA_FILES))" | sed 's|^|$(srctree)/$(src)/|' CHK_DT_DOCS := $(shell $(find_cmd)) quiet_cmd_yamllint = LINT $(src) diff --git a/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml b/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml index a9fe01238a88..76b65ea149b6 100644 --- a/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml +++ b/Documentation/devicetree/bindings/arm/calxeda/l2ecc.yaml @@ -16,7 +16,7 @@ maintainers: properties: compatible: - const: "calxeda,hb-sregs-l2-ecc" + const: calxeda,hb-sregs-l2-ecc reg: maxItems: 1 diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt b/Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt deleted file mode 100644 index 606b4b1b709d..000000000000 --- a/Documentation/devicetree/bindings/arm/msm/qcom,idle-state.txt +++ /dev/null @@ -1,84 +0,0 @@ -QCOM Idle States for cpuidle driver - -ARM provides idle-state node to define the cpuidle states, as defined in [1]. -cpuidle-qcom is the cpuidle driver for Qualcomm SoCs and uses these idle -states. Idle states have different enter/exit latency and residency values. -The idle states supported by the QCOM SoC are defined as - - - * Standby - * Retention - * Standalone Power Collapse (Standalone PC or SPC) - * Power Collapse (PC) - -Standby: Standby does a little more in addition to architectural clock gating. -When the WFI instruction is executed the ARM core would gate its internal -clocks. In addition to gating the clocks, QCOM cpus use this instruction as a -trigger to execute the SPM state machine. The SPM state machine waits for the -interrupt to trigger the core back in to active. This triggers the cache -hierarchy to enter standby states, when all cpus are idle. An interrupt brings -the SPM state machine out of its wait, the next step is to ensure that the -cache hierarchy is also out of standby, and then the cpu is allowed to resume -execution. This state is defined as a generic ARM WFI state by the ARM cpuidle -driver and is not defined in the DT. The SPM state machine should be -configured to execute this state by default and after executing every other -state below. - -Retention: Retention is a low power state where the core is clock gated and -the memory and the registers associated with the core are retained. The -voltage may be reduced to the minimum value needed to keep the processor -registers active. The SPM should be configured to execute the retention -sequence and would wait for interrupt, before restoring the cpu to execution -state. Retention may have a slightly higher latency than Standby. - -Standalone PC: A cpu can power down and warmboot if there is a sufficient time -between the time it enters idle and the next known wake up. SPC mode is used -to indicate a core entering a power down state without consulting any other -cpu or the system resources. This helps save power only on that core. The SPM -sequence for this idle state is programmed to power down the supply to the -core, wait for the interrupt, restore power to the core, and ensure the -system state including cache hierarchy is ready before allowing core to -resume. Applying power and resetting the core causes the core to warmboot -back into Elevation Level (EL) which trampolines the control back to the -kernel. Entering a power down state for the cpu, needs to be done by trapping -into a EL. Failing to do so, would result in a crash enforced by the warm boot -code in the EL for the SoC. On SoCs with write-back L1 cache, the cache has to -be flushed in s/w, before powering down the core. - -Power Collapse: This state is similar to the SPC mode, but distinguishes -itself in that the cpu acknowledges and permits the SoC to enter deeper sleep -modes. In a hierarchical power domain SoC, this means L2 and other caches can -be flushed, system bus, clocks - lowered, and SoC main XO clock gated and -voltages reduced, provided all cpus enter this state. Since the span of low -power modes possible at this state is vast, the exit latency and the residency -of this low power mode would be considered high even though at a cpu level, -this essentially is cpu power down. The SPM in this state also may handshake -with the Resource power manager (RPM) processor in the SoC to indicate a -complete application processor subsystem shut down. - -The idle-state for QCOM SoCs are distinguished by the compatible property of -the idle-states device node. - -The devicetree representation of the idle state should be - - -Required properties: - -- compatible: Must be one of - - "qcom,idle-state-ret", - "qcom,idle-state-spc", - "qcom,idle-state-pc", - and "arm,idle-state". - -Other required and optional properties are specified in [1]. - -Example: - - idle-states { - CPU_SPC: spc { - compatible = "qcom,idle-state-spc", "arm,idle-state"; - entry-latency-us = <150>; - exit-latency-us = <200>; - min-residency-us = <2000>; - }; - }; - -[1]. Documentation/devicetree/bindings/cpu/idle-states.yaml diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml new file mode 100644 index 000000000000..4fd5752978cd --- /dev/null +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/qcom,coresight-remote-etm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Coresight Remote ETM(Embedded Trace Macrocell) + +maintainers: + - Jinlong Mao <quic_jinlmao@quicinc.com> + - Tao Zhang <quic_taozha@quicinc.com> + +description: + Support for ETM trace collection on remote processor using coresight + framework. Enabling this will allow turning on ETM tracing on remote + processor like modem processor via sysfs and collecting the trace + via coresight TMC sinks. + +properties: + compatible: + const: qcom,coresight-remote-etm + + out-ports: + $ref: /schemas/graph.yaml#/properties/ports + additionalProperties: false + + properties: + port: + description: Output connection to the CoreSight Trace bus. + $ref: /schemas/graph.yaml#/properties/port + +required: + - compatible + - out-ports + +additionalProperties: false + +examples: + - | + etm { + compatible = "qcom,coresight-remote-etm"; + + out-ports { + port { + modem_etm0_out_funnel_modem: endpoint { + remote-endpoint = <&funnel_modem_in_modem_etm0>; + }; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml b/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml index fde07e4b119d..406a922a714e 100644 --- a/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml +++ b/Documentation/devicetree/bindings/auxdisplay/hit,hd44780.yaml @@ -113,7 +113,7 @@ examples: hd44780 { compatible = "hit,hd44780"; display-height-chars = <2>; - display-width-chars = <16>; + display-width-chars = <16>; data-gpios = <&pcf8574 4 0>, <&pcf8574 5 0>, <&pcf8574 6 0>, diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml index b9a9f2cf32a1..07ccbda4a0ab 100644 --- a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml +++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml @@ -66,6 +66,7 @@ allOf: compatible: contains: enum: + - qcom,qdu1000-llcc - qcom,sc7180-llcc - qcom,sm6350-llcc then: @@ -103,7 +104,6 @@ allOf: compatible: contains: enum: - - qcom,qdu1000-llcc - qcom,sc8180x-llcc - qcom,sc8280xp-llcc - qcom,x1e80100-llcc diff --git a/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml b/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml index 624984d51c10..7f8d98226437 100644 --- a/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml +++ b/Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml @@ -125,7 +125,7 @@ examples: clk25m: clock-oscillator-25m { compatible = "fixed-clock"; #clock-cells = <0>; - clock-frequency = <25000000>; + clock-frequency = <25000000>; clock-output-names = "clk25m"; }; ... diff --git a/Documentation/devicetree/bindings/cpu/idle-states.yaml b/Documentation/devicetree/bindings/cpu/idle-states.yaml index b3a5356f9916..239480ef7c30 100644 --- a/Documentation/devicetree/bindings/cpu/idle-states.yaml +++ b/Documentation/devicetree/bindings/cpu/idle-states.yaml @@ -243,7 +243,64 @@ description: |+ just supports idle_standby, an idle-states node is not required. =========================================== - 6 - References + 6 - Qualcomm specific STATES + =========================================== + + Idle states have different enter/exit latency and residency values. + The idle states supported by the QCOM SoC are defined as - + + * Standby + * Retention + * Standalone Power Collapse (Standalone PC or SPC) + * Power Collapse (PC) + + Standby: Standby does a little more in addition to architectural clock gating. + When the WFI instruction is executed the ARM core would gate its internal + clocks. In addition to gating the clocks, QCOM cpus use this instruction as a + trigger to execute the SPM state machine. The SPM state machine waits for the + interrupt to trigger the core back in to active. This triggers the cache + hierarchy to enter standby states, when all cpus are idle. An interrupt brings + the SPM state machine out of its wait, the next step is to ensure that the + cache hierarchy is also out of standby, and then the cpu is allowed to resume + execution. This state is defined as a generic ARM WFI state by the ARM cpuidle + driver and is not defined in the DT. The SPM state machine should be + configured to execute this state by default and after executing every other + state below. + + Retention: Retention is a low power state where the core is clock gated and + the memory and the registers associated with the core are retained. The + voltage may be reduced to the minimum value needed to keep the processor + registers active. The SPM should be configured to execute the retention + sequence and would wait for interrupt, before restoring the cpu to execution + state. Retention may have a slightly higher latency than Standby. + + Standalone PC: A cpu can power down and warmboot if there is a sufficient time + between the time it enters idle and the next known wake up. SPC mode is used + to indicate a core entering a power down state without consulting any other + cpu or the system resources. This helps save power only on that core. The SPM + sequence for this idle state is programmed to power down the supply to the + core, wait for the interrupt, restore power to the core, and ensure the + system state including cache hierarchy is ready before allowing core to + resume. Applying power and resetting the core causes the core to warmboot + back into Elevation Level (EL) which trampolines the control back to the + kernel. Entering a power down state for the cpu, needs to be done by trapping + into a EL. Failing to do so, would result in a crash enforced by the warm boot + code in the EL for the SoC. On SoCs with write-back L1 cache, the cache has to + be flushed in s/w, before powering down the core. + + Power Collapse: This state is similar to the SPC mode, but distinguishes + itself in that the cpu acknowledges and permits the SoC to enter deeper sleep + modes. In a hierarchical power domain SoC, this means L2 and other caches can + be flushed, system bus, clocks - lowered, and SoC main XO clock gated and + voltages reduced, provided all cpus enter this state. Since the span of low + power modes possible at this state is vast, the exit latency and the residency + of this low power mode would be considered high even though at a cpu level, + this essentially is cpu power down. The SPM in this state also may handshake + with the Resource power manager (RPM) processor in the SoC to indicate a + complete application processor subsystem shut down. + + =========================================== + 7 - References =========================================== [1] ARM Linux Kernel documentation - CPUs bindings @@ -301,9 +358,16 @@ patternProperties: properties: compatible: - enum: - - arm,idle-state - - riscv,idle-state + oneOf: + - items: + - enum: + - qcom,idle-state-ret + - qcom,idle-state-spc + - qcom,idle-state-pc + - const: arm,idle-state + - enum: + - arm,idle-state + - riscv,idle-state arm,psci-suspend-param: $ref: /schemas/types.yaml#/definitions/uint32 @@ -852,4 +916,13 @@ examples: }; }; + // Example 4 - Qualcomm SPC + idle-states { + cpu_spc: cpu-spc { + compatible = "qcom,idle-state-spc", "arm,idle-state"; + entry-latency-us = <150>; + exit-latency-us = <200>; + min-residency-us = <2000>; + }; + }; ... diff --git a/Documentation/devicetree/bindings/display/panel/synaptics,r63353.yaml b/Documentation/devicetree/bindings/display/panel/synaptics,r63353.yaml new file mode 100644 index 000000000000..e5617d125567 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/synaptics,r63353.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/synaptics,r63353.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synaptics R63353 based MIPI-DSI panels + +maintainers: + - Michael Trimarchi <michael@amarulasolutions.com> + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + items: + - enum: + - sharp,ls068b3sx02 + - const: syna,r63353 + + avdd-supply: true + dvdd-supply: true + reg: true + +required: + - compatible + - avdd-supply + - dvdd-supply + - reg + - reset-gpios + - port + - backlight + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + dsi { + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "sharp,ls068b3sx02", "syna,r63353"; + reg = <0>; + avdd-supply = <&avdd_display>; + dvdd-supply = <&dvdd_display>; + reset-gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL05 */ + backlight = <&backlight>; + + port { + panel_in: endpoint { + remote-endpoint = <&mipi_dsi_out>; + }; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt deleted file mode 100644 index cec21714f0e0..000000000000 --- a/Documentation/devicetree/bindings/display/rockchip/inno_hdmi-rockchip.txt +++ /dev/null @@ -1,49 +0,0 @@ -Rockchip specific extensions to the Innosilicon HDMI -================================ - -Required properties: -- compatible: - "rockchip,rk3036-inno-hdmi"; -- reg: - Physical base address and length of the controller's registers. -- clocks, clock-names: - Phandle to hdmi controller clock, name should be "pclk" -- interrupts: - HDMI interrupt number -- ports: - Contain one port node with endpoint definitions as defined in - Documentation/devicetree/bindings/graph.txt. -- pinctrl-0, pinctrl-name: - Switch the iomux of HPD/CEC pins to HDMI function. - -Example: -hdmi: hdmi@20034000 { - compatible = "rockchip,rk3036-inno-hdmi"; - reg = <0x20034000 0x4000>; - interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&cru PCLK_HDMI>; - clock-names = "pclk"; - pinctrl-names = "default"; - pinctrl-0 = <&hdmi_ctl>; - - hdmi_in: port { - #address-cells = <1>; - #size-cells = <0>; - hdmi_in_lcdc: endpoint@0 { - reg = <0>; - remote-endpoint = <&lcdc_out_hdmi>; - }; - }; -}; - -&pinctrl { - hdmi { - hdmi_ctl: hdmi-ctl { - rockchip,pins = <1 8 RK_FUNC_1 &pcfg_pull_none>, - <1 9 RK_FUNC_1 &pcfg_pull_none>, - <1 10 RK_FUNC_1 &pcfg_pull_none>, - <1 11 RK_FUNC_1 &pcfg_pull_none>; - }; - }; - -}; diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml new file mode 100644 index 000000000000..be78dcfa1c76 --- /dev/null +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/rockchip/rockchip,inno-hdmi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip Innosilicon HDMI controller + +maintainers: + - Sandy Huang <hjc@rock-chips.com> + - Heiko Stuebner <heiko@sntech.de> + +properties: + compatible: + enum: + - rockchip,rk3036-inno-hdmi + - rockchip,rk3128-inno-hdmi + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 1 + items: + - description: The HDMI controller main clock + - description: The HDMI PHY reference clock + + clock-names: + minItems: 1 + items: + - const: pclk + - const: ref + + power-domains: + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Port node with one endpoint connected to a vop node. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + Port node with one endpoint connected to a hdmi-connector node. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - pinctrl-0 + - pinctrl-names + - ports + +allOf: + - if: + properties: + compatible: + contains: + const: rockchip,rk3036-inno-hdmi + + then: + properties: + power-domains: false + + - if: + properties: + compatible: + contains: + const: rockchip,rk3128-inno-hdmi + + then: + properties: + clocks: + minItems: 2 + clock-names: + minItems: 2 + required: + - power-domains + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/rk3036-cru.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/pinctrl/rockchip.h> + hdmi: hdmi@20034000 { + compatible = "rockchip,rk3036-inno-hdmi"; + reg = <0x20034000 0x4000>; + interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cru PCLK_HDMI>; + clock-names = "pclk"; + pinctrl-names = "default"; + pinctrl-0 = <&hdmi_ctl>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + hdmi_in: port@0 { + reg = <0>; + hdmi_in_vop: endpoint { + remote-endpoint = <&vop_out_hdmi>; + }; + }; + + hdmi_out: port@1 { + reg = <1>; + hdmi_out_con: endpoint { + remote-endpoint = <&hdmi_con_in>; + }; + }; + }; + }; + + pinctrl { + hdmi { + hdmi_ctl: hdmi-ctl { + rockchip,pins = <1 RK_PB0 1 &pcfg_pull_none>, + <1 RK_PB1 1 &pcfg_pull_none>, + <1 RK_PB2 1 &pcfg_pull_none>, + <1 RK_PB3 1 &pcfg_pull_none>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/dts-coding-style.rst b/Documentation/devicetree/bindings/dts-coding-style.rst new file mode 100644 index 000000000000..a9bdd2b59dca --- /dev/null +++ b/Documentation/devicetree/bindings/dts-coding-style.rst @@ -0,0 +1,196 @@ +.. SPDX-License-Identifier: GPL-2.0 + +===================================== +Devicetree Sources (DTS) Coding Style +===================================== + +When writing Devicetree Sources (DTS) please observe below guidelines. They +should be considered complementary to any rules expressed already in +the Devicetree Specification and the dtc compiler (including W=1 and W=2 +builds). + +Individual architectures and subarchitectures can define additional rules, +making the coding style stricter. + +Naming and Valid Characters +--------------------------- + +The Devicetree Specification allows a broad range of characters in node +and property names, but this coding style narrows the range down to achieve +better code readability. + +1. Node and property names can use only the following characters: + + * Lowercase characters: [a-z] + * Digits: [0-9] + * Dash: - + +2. Labels can use only the following characters: + + * Lowercase characters: [a-z] + * Digits: [0-9] + * Underscore: _ + +3. Unless a bus defines differently, unit addresses shall use lowercase + hexadecimal digits, without leading zeros (padding). + +4. Hex values in properties, e.g. "reg", shall use lowercase hex. The address + part can be padded with leading zeros. + +Example:: + + gpi_dma2: dma-controller@a00000 { + compatible = "qcom,sm8550-gpi-dma", "qcom,sm6350-gpi-dma"; + reg = <0x0 0x00a00000 0x0 0x60000>; + } + +Order of Nodes +-------------- + +1. Nodes on any bus, thus using unit addresses for children, shall be + ordered by unit address in ascending order. + Alternatively for some subarchitectures, nodes of the same type can be + grouped together, e.g. all I2C controllers one after another even if this + breaks unit address ordering. + +2. Nodes without unit addresses shall be ordered alpha-numerically by the node + name. For a few node types, they can be ordered by the main property, e.g. + pin configuration states ordered by value of "pins" property. + +3. When extending nodes in the board DTS via &label, the entries shall be + ordered either alpha-numerically or by keeping the order from DTSI, where + the choice depends on the subarchitecture. + +The above-described ordering rules are easy to enforce during review, reduce +chances of conflicts for simultaneous additions of new nodes to a file and help +in navigating through the DTS source. + +Example:: + + /* SoC DTSI */ + + / { + cpus { + /* ... */ + }; + + psci { + /* ... */ + }; + + soc@0 { + dma: dma-controller@10000 { + /* ... */ + }; + + clk: clock-controller@80000 { + /* ... */ + }; + }; + }; + + /* Board DTS - alphabetical order */ + + &clk { + /* ... */ + }; + + &dma { + /* ... */ + }; + + /* Board DTS - alternative order, keep as DTSI */ + + &dma { + /* ... */ + }; + + &clk { + /* ... */ + }; + +Order of Properties in Device Node +---------------------------------- + +The following order of properties in device nodes is preferred: + +1. "compatible" +2. "reg" +3. "ranges" +4. Standard/common properties (defined by common bindings, e.g. without + vendor-prefixes) +5. Vendor-specific properties +6. "status" (if applicable) +7. Child nodes, where each node is preceded with a blank line + +The "status" property is by default "okay", thus it can be omitted. + +The above-described ordering follows this approach: + +1. Most important properties start the node: compatible then bus addressing to + match unit address. +2. Each node will have common properties in similar place. +3. Status is the last information to annotate that device node is or is not + finished (board resources are needed). + +Example:: + + /* SoC DTSI */ + + device_node: device-class@6789abc { + compatible = "vendor,device"; + reg = <0x0 0x06789abc 0x0 0xa123>; + ranges = <0x0 0x0 0x06789abc 0x1000>; + #dma-cells = <1>; + clocks = <&clock_controller 0>, <&clock_controller 1>; + clock-names = "bus", "host"; + vendor,custom-property = <2>; + status = "disabled"; + + child_node: child-class@100 { + reg = <0x100 0x200>; + /* ... */ + }; + }; + + /* Board DTS */ + + &device_node { + vdd-supply = <&board_vreg1>; + status = "okay"; + } + +Indentation +----------- + +1. Use indentation according to Documentation/process/coding-style.rst. +2. Each entry in arrays with multiple cells, e.g. "reg" with two IO addresses, + shall be enclosed in <>. +3. For arrays spanning across lines, it is preferred to align the continued + entries with opening < from the first line. + +Example:: + + thermal-sensor@c271000 { + compatible = "qcom,sm8550-tsens", "qcom,tsens-v2"; + reg = <0x0 0x0c271000 0x0 0x1000>, + <0x0 0x0c222000 0x0 0x1000>; + }; + +Organizing DTSI and DTS +----------------------- + +The DTSI and DTS files shall be organized in a way representing the common, +reusable parts of hardware. Typically, this means organizing DTSI and DTS files +into several files: + +1. DTSI with contents of the entire SoC, without nodes for hardware not present + on the SoC. +2. If applicable: DTSI with common or re-usable parts of the hardware, e.g. + entire System-on-Module. +3. DTS representing the board. + +Hardware components that are present on the board shall be placed in the +board DTS, not in the SoC or SoM DTSI. A partial exception is a common +external reference SoC input clock, which could be coded as a fixed-clock in +the SoC DTSI with its frequency provided by each board DTS. diff --git a/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt deleted file mode 100644 index 5dd0ff0f7b4e..000000000000 --- a/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt +++ /dev/null @@ -1,13 +0,0 @@ -Altera FPGA To SDRAM Bridge Driver - -Required properties: -- compatible : Should contain "altr,socfpga-fpga2sdram-bridge" - -See Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings. - -Example: - fpga_bridge3: fpga-bridge@ffc25080 { - compatible = "altr,socfpga-fpga2sdram-bridge"; - reg = <0xffc25080 0x4>; - bridge-enable = <0>; - }; diff --git a/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt deleted file mode 100644 index 8b26fbcff3c6..000000000000 --- a/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt +++ /dev/null @@ -1,20 +0,0 @@ -Altera Freeze Bridge Controller Driver - -The Altera Freeze Bridge Controller manages one or more freeze bridges. -The controller can freeze/disable the bridges which prevents signal -changes from passing through the bridge. The controller can also -unfreeze/enable the bridges which allows traffic to pass through the -bridge normally. - -Required properties: -- compatible : Should contain "altr,freeze-bridge-controller" -- regs : base address and size for freeze bridge module - -See Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings. - -Example: - freeze-controller@100000450 { - compatible = "altr,freeze-bridge-controller"; - regs = <0x1000 0x10>; - bridge-enable = <0>; - }; diff --git a/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt deleted file mode 100644 index 68cce3945b10..000000000000 --- a/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt +++ /dev/null @@ -1,36 +0,0 @@ -Altera FPGA/HPS Bridge Driver - -Required properties: -- regs : base address and size for AXI bridge module -- compatible : Should contain one of: - "altr,socfpga-lwhps2fpga-bridge", - "altr,socfpga-hps2fpga-bridge", or - "altr,socfpga-fpga2hps-bridge" -- resets : Phandle and reset specifier for this bridge's reset -- clocks : Clocks used by this module. - -See Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings. - -Example: - fpga_bridge0: fpga-bridge@ff400000 { - compatible = "altr,socfpga-lwhps2fpga-bridge"; - reg = <0xff400000 0x100000>; - resets = <&rst LWHPS2FPGA_RESET>; - clocks = <&l4_main_clk>; - bridge-enable = <0>; - }; - - fpga_bridge1: fpga-bridge@ff500000 { - compatible = "altr,socfpga-hps2fpga-bridge"; - reg = <0xff500000 0x10000>; - resets = <&rst HPS2FPGA_RESET>; - clocks = <&l4_main_clk>; - bridge-enable = <1>; - }; - - fpga_bridge2: fpga-bridge@ff600000 { - compatible = "altr,socfpga-fpga2hps-bridge"; - reg = <0xff600000 0x100000>; - resets = <&rst FPGA2HPS_RESET>; - clocks = <&l4_main_clk>; - }; diff --git a/Documentation/devicetree/bindings/fpga/altr,freeze-bridge-controller.yaml b/Documentation/devicetree/bindings/fpga/altr,freeze-bridge-controller.yaml new file mode 100644 index 000000000000..fccffeebb256 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altr,freeze-bridge-controller.yaml @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fpga/altr,freeze-bridge-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Altera Freeze Bridge Controller + +description: + The Altera Freeze Bridge Controller manages one or more freeze bridges. + The controller can freeze/disable the bridges which prevents signal + changes from passing through the bridge. The controller can also + unfreeze/enable the bridges which allows traffic to pass through the bridge + normally. + +maintainers: + - Xu Yilun <yilun.xu@intel.com> + +allOf: + - $ref: fpga-bridge.yaml# + +properties: + compatible: + const: altr,freeze-bridge-controller + + reg: + maxItems: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + fpga-bridge@100000450 { + compatible = "altr,freeze-bridge-controller"; + reg = <0x1000 0x10>; + bridge-enable = <0>; + }; diff --git a/Documentation/devicetree/bindings/fpga/altr,socfpga-fpga2sdram-bridge.yaml b/Documentation/devicetree/bindings/fpga/altr,socfpga-fpga2sdram-bridge.yaml new file mode 100644 index 000000000000..22b58453c5ff --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altr,socfpga-fpga2sdram-bridge.yaml @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fpga/altr,socfpga-fpga2sdram-bridge.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Altera FPGA To SDRAM Bridge + +maintainers: + - Xu Yilun <yilun.xu@intel.com> + +allOf: + - $ref: fpga-bridge.yaml# + +properties: + compatible: + const: altr,socfpga-fpga2sdram-bridge + + reg: + maxItems: 1 + +required: + - compatible + +unevaluatedProperties: false + +examples: + - | + fpga-bridge@ffc25080 { + compatible = "altr,socfpga-fpga2sdram-bridge"; + reg = <0xffc25080 0x4>; + bridge-enable = <0>; + }; diff --git a/Documentation/devicetree/bindings/fpga/altr,socfpga-hps2fpga-bridge.yaml b/Documentation/devicetree/bindings/fpga/altr,socfpga-hps2fpga-bridge.yaml new file mode 100644 index 000000000000..d19c6660d6c9 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altr,socfpga-hps2fpga-bridge.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fpga/altr,socfpga-hps2fpga-bridge.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Altera FPGA/HPS Bridge + +maintainers: + - Xu Yilun <yilun.xu@intel.com> + +allOf: + - $ref: fpga-bridge.yaml# + +properties: + compatible: + enum: + - altr,socfpga-lwhps2fpga-bridge + - altr,socfpga-hps2fpga-bridge + - altr,socfpga-fpga2hps-bridge + + reg: + maxItems: 1 + + resets: + maxItems: 1 + + clocks: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - resets + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/reset/altr,rst-mgr.h> + + fpga-bridge@ff400000 { + compatible = "altr,socfpga-lwhps2fpga-bridge"; + reg = <0xff400000 0x100000>; + bridge-enable = <0>; + clocks = <&l4_main_clk>; + resets = <&rst LWHPS2FPGA_RESET>; + }; diff --git a/Documentation/devicetree/bindings/fpga/fpga-bridge.txt b/Documentation/devicetree/bindings/fpga/fpga-bridge.txt deleted file mode 100644 index 72e06917288a..000000000000 --- a/Documentation/devicetree/bindings/fpga/fpga-bridge.txt +++ /dev/null @@ -1,13 +0,0 @@ -FPGA Bridge Device Tree Binding - -Optional properties: -- bridge-enable : 0 if driver should disable bridge at startup - 1 if driver should enable bridge at startup - Default is to leave bridge in current state. - -Example: - fpga_bridge3: fpga-bridge@ffc25080 { - compatible = "altr,socfpga-fpga2sdram-bridge"; - reg = <0xffc25080 0x4>; - bridge-enable = <0>; - }; diff --git a/Documentation/devicetree/bindings/fpga/fpga-bridge.yaml b/Documentation/devicetree/bindings/fpga/fpga-bridge.yaml new file mode 100644 index 000000000000..1ccb2aa18726 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/fpga-bridge.yaml @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fpga/fpga-bridge.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: FPGA Bridge + +maintainers: + - Michal Simek <michal.simek@amd.com> + +properties: + $nodename: + pattern: "^fpga-bridge(@.*|-([0-9]|[1-9][0-9]+))?$" + + bridge-enable: + description: | + 0 if driver should disable bridge at startup + 1 if driver should enable bridge at startup + Default is to leave bridge in current state. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 0, 1 ] + +additionalProperties: true + +examples: + - | + fpga-bridge { + bridge-enable = <0>; + }; diff --git a/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml b/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml index a7d4b8e59e19..5bf731f9d99a 100644 --- a/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml +++ b/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml @@ -9,6 +9,9 @@ title: Xilinx LogiCORE Partial Reconfig Decoupler/AXI shutdown manager Softcore maintainers: - Nava kishore Manne <nava.kishore.manne@amd.com> +allOf: + - $ref: fpga-bridge.yaml# + description: | The Xilinx LogiCORE Partial Reconfig(PR) Decoupler manages one or more decouplers/fpga bridges. The controller can decouple/disable the bridges @@ -51,7 +54,7 @@ required: - clocks - clock-names -additionalProperties: false +unevaluatedProperties: false examples: - | diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml b/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml index e7daae862578..132aaa49597b 100644 --- a/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml +++ b/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml @@ -22,36 +22,20 @@ properties: interrupts: maxItems: 1 - clocks: {} - clock-names: {} - iommus: {} - power-domains: {} - -if: - properties: - compatible: - contains: - const: samsung,exynos5250-g2d - -then: - properties: - clocks: - items: - - description: fimg2d clock - clock-names: - items: - - const: fimg2d - -else: - properties: - clocks: - items: - - description: sclk_fimg2d clock - - description: fimg2d clock - clock-names: - items: - - const: sclk_fimg2d - - const: fimg2d + clocks: + minItems: 1 + maxItems: 2 + + clock-names: + minItems: 1 + maxItems: 2 + + iommus: + minItems: 1 + maxItems: 2 + + power-domains: + maxItems: 1 required: - compatible @@ -60,6 +44,33 @@ required: - clocks - clock-names +allOf: + - if: + properties: + compatible: + contains: + const: samsung,exynos5250-g2d + + then: + properties: + clocks: + items: + - description: fimg2d clock + clock-names: + items: + - const: fimg2d + + else: + properties: + clocks: + items: + - description: sclk_fimg2d clock + - description: fimg2d clock + clock-names: + items: + - const: sclk_fimg2d + - const: fimg2d + additionalProperties: false examples: diff --git a/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml b/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml index d60626ffb28e..18bf44e06e8f 100644 --- a/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml +++ b/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml @@ -12,10 +12,11 @@ maintainers: properties: compatible: enum: - - "samsung,s5pv210-rotator" - - "samsung,exynos4210-rotator" - - "samsung,exynos4212-rotator" - - "samsung,exynos5250-rotator" + - samsung,s5pv210-rotator + - samsung,exynos4210-rotator + - samsung,exynos4212-rotator + - samsung,exynos5250-rotator + reg: maxItems: 1 diff --git a/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml b/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml index 5317ac64426a..9fb530e65d0e 100644 --- a/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml +++ b/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml @@ -21,40 +21,20 @@ properties: interrupts: maxItems: 1 - clocks: {} - clock-names: {} - iommus: {} - power-domains: {} - -if: - properties: - compatible: - contains: - const: samsung,exynos5420-scaler - -then: - properties: - clocks: - items: - - description: mscl clock - - clock-names: - items: - - const: mscl - -else: - properties: - clocks: - items: - - description: pclk clock - - description: aclk clock - - description: aclk_xiu clock - - clock-names: - items: - - const: pclk - - const: aclk - - const: aclk_xiu + clocks: + minItems: 1 + maxItems: 3 + + clock-names: + minItems: 1 + maxItems: 3 + + iommus: + minItems: 1 + maxItems: 2 + + power-domains: + maxItems: 1 required: - compatible @@ -63,6 +43,39 @@ required: - clocks - clock-names +allOf: + - if: + properties: + compatible: + contains: + const: samsung,exynos5420-scaler + + then: + properties: + clocks: + items: + - description: mscl clock + clock-names: + items: + - const: mscl + iommus: + minItems: 2 + + else: + properties: + clocks: + items: + - description: pclk clock + - description: aclk clock + - description: aclk_xiu clock + clock-names: + items: + - const: pclk + - const: aclk + - const: aclk_xiu + iommus: + maxItems: 1 + additionalProperties: false examples: diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml index 5fcc8dd012f1..be2616ff9af6 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml @@ -80,9 +80,9 @@ examples: compatible = "adi,ad7780"; reg = <0>; - avdd-supply = <&vdd_supply>; - powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; - adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>; + avdd-supply = <&vdd_supply>; + powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; + adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>; adi,filter-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; }; }; diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml index 73def67fbe01..b6a233cd5f6b 100644 --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-iadc.yaml @@ -58,7 +58,7 @@ examples: reg = <0x3600>; interrupts = <0x0 0x36 0x0 IRQ_TYPE_EDGE_RISING>; qcom,external-resistor-micro-ohms = <10000>; - #io-channel-cells = <1>; + #io-channel-cells = <1>; }; }; ... diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml index b3a626389870..64abe9a4cd9e 100644 --- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml @@ -46,6 +46,6 @@ examples: pmic_rradc: adc@4500 { compatible = "qcom,pmi8998-rradc"; reg = <0x4500>; - #io-channel-cells = <1>; + #io-channel-cells = <1>; }; }; diff --git a/Documentation/devicetree/bindings/index.rst b/Documentation/devicetree/bindings/index.rst index d9002a3a0abb..cc1fbdc05657 100644 --- a/Documentation/devicetree/bindings/index.rst +++ b/Documentation/devicetree/bindings/index.rst @@ -4,6 +4,7 @@ :maxdepth: 1 ABI + dts-coding-style writing-bindings writing-schema submitting-patches diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml index 86d61896f591..4bdc8321904b 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml @@ -35,12 +35,16 @@ properties: - qcom,sdm845-pdc - qcom,sdx55-pdc - qcom,sdx65-pdc + - qcom,sdx75-pdc - qcom,sm4450-pdc - qcom,sm6350-pdc - qcom,sm8150-pdc - qcom,sm8250-pdc - qcom,sm8350-pdc - qcom,sm8450-pdc + - qcom,sm8550-pdc + - qcom,sm8650-pdc + - qcom,x1e80100-pdc - const: qcom,pdc reg: diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml b/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml index 2b153d7c5421..e44e4e5708a7 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml +++ b/Documentation/devicetree/bindings/interrupt-controller/st,stih407-irq-syscfg.yaml @@ -55,8 +55,8 @@ examples: - | #include <dt-bindings/interrupt-controller/irq-st.h> irq-syscfg { - compatible = "st,stih407-irq-syscfg"; - st,syscfg = <&syscfg_cpu>; + compatible = "st,stih407-irq-syscfg"; + st,syscfg = <&syscfg_cpu>; st,irq-device = <ST_IRQ_SYSCFG_PMU_0>, <ST_IRQ_SYSCFG_PMU_1>; st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>, diff --git a/Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml b/Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml index d66e51547482..b46cc780703c 100644 --- a/Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml +++ b/Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml @@ -50,7 +50,9 @@ properties: iommu-names: minItems: 1 - maxItems: 2 + items: + - const: left + - const: right power-domains: maxItems: 1 @@ -85,7 +87,7 @@ allOf: - const: sclk_mfc iommus: maxItems: 1 - iommus-names: false + iommu-names: false - if: properties: @@ -103,11 +105,9 @@ allOf: - const: aclk - const: aclk_xiu iommus: - maxItems: 2 - iommus-names: - items: - - const: left - - const: right + minItems: 2 + iommu-names: + minItems: 2 - if: properties: @@ -124,11 +124,9 @@ allOf: - const: mfc - const: sclk_mfc iommus: - maxItems: 2 - iommus-names: - items: - - const: left - - const: right + minItems: 2 + iommu-names: + minItems: 2 - if: properties: @@ -145,11 +143,9 @@ allOf: items: - const: mfc iommus: - maxItems: 2 - iommus-names: - items: - - const: left - - const: right + minItems: 2 + iommu-names: + minItems: 2 - if: properties: @@ -162,9 +158,6 @@ allOf: clocks: minItems: 1 maxItems: 2 - iommus: - minItems: 1 - maxItems: 2 - if: properties: diff --git a/Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml b/Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml index 8cc951feb7df..59b83ea5e05e 100644 --- a/Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml +++ b/Documentation/devicetree/bindings/misc/fsl,dpaa2-console.yaml @@ -12,7 +12,7 @@ maintainers: properties: compatible: - const: "fsl,dpaa2-console" + const: fsl,dpaa2-console reg: maxItems: 1 diff --git a/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml b/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml index 2459a55ed540..940b12688167 100644 --- a/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml +++ b/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml @@ -203,7 +203,7 @@ examples: bus-width = <4>; cap-sd-highspeed; cap-mmc-highspeed; - cd-gpios = <&gpio2 31 0x4>; + cd-gpios = <&gpio2 31 0x4>; st,sig-dir-dat0; st,sig-dir-dat2; st,sig-dir-cmd; diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml b/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml index 09455f9fa8de..4869ddef36fd 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml +++ b/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml @@ -18,7 +18,7 @@ allOf: const: marvell,armada-380-sdhci then: properties: - regs: + reg: minItems: 3 reg-names: minItems: 3 @@ -26,7 +26,7 @@ allOf: - reg-names else: properties: - regs: + reg: maxItems: 1 reg-names: maxItems: 1 diff --git a/Documentation/devicetree/bindings/net/sff,sfp.yaml b/Documentation/devicetree/bindings/net/sff,sfp.yaml index 973e478a399d..bf6cbc7c2ba3 100644 --- a/Documentation/devicetree/bindings/net/sff,sfp.yaml +++ b/Documentation/devicetree/bindings/net/sff,sfp.yaml @@ -120,7 +120,7 @@ examples: pinctrl-names = "default"; pinctrl-0 = <&cps_sfpp0_pins>; tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>; - tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>; + tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>; }; mdio { diff --git a/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml b/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml index 53da2edd7c9a..120e3bb1e545 100644 --- a/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml @@ -83,7 +83,7 @@ examples: <0x0 0x28050000 0x0 0x00010000>, <0x0 0x24200000 0x0 0x00002000>, <0x0 0x24162000 0x0 0x00001000>; - reg-names = "dbi", "config", "ulreg", "smu", "mpu"; + reg-names = "dbi", "config", "ulreg", "smu", "mpu"; device_type = "pci"; bus-range = <0x00 0xff>; num-lanes = <2>; diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml index b5ca40d0e251..d476de82e5c3 100644 --- a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml +++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml @@ -185,17 +185,17 @@ examples: sd1_mux { pinmux = <RZG2L_PORT_PINMUX(19, 0, 1)>, /* CD */ <RZG2L_PORT_PINMUX(19, 1, 1)>; /* WP */ - power-source = <3300>; + power-source = <3300>; }; sd1_data { pins = "SD1_DATA0", "SD1_DATA1", "SD1_DATA2", "SD1_DATA3"; - power-source = <3300>; + power-source = <3300>; }; sd1_ctrl { pins = "SD1_CLK", "SD1_CMD"; - power-source = <3300>; + power-source = <3300>; }; }; }; diff --git a/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml b/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml index 407b7cfec783..7a0f1a400868 100644 --- a/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml +++ b/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml @@ -20,6 +20,7 @@ properties: compatible: items: - enum: + - fsl,imx8dl-scu-pd - fsl,imx8qm-scu-pd - fsl,imx8qxp-scu-pd - const: fsl,scu-pd diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml index 07e38be39f1b..89f9603499b4 100644 --- a/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml +++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml @@ -79,10 +79,10 @@ examples: interrupt-parent = <&gpio1>; interrupts = <0 IRQ_TYPE_LEVEL_LOW>; - richtek,output-charge-current = <500000>; - richtek,end-of-charge-percentage = <10>; - richtek,battery-regulation-voltage = <4200000>; - richtek,boost-output-voltage = <5050000>; + richtek,output-charge-current = <500000>; + richtek,end-of-charge-percentage = <10>; + richtek,battery-regulation-voltage = <4200000>; + richtek,boost-output-voltage = <5050000>; richtek,min-input-voltage-regulation = <4500000>; richtek,avg-input-current-regulation = <500000>; diff --git a/Documentation/devicetree/bindings/power/wakeup-source.txt b/Documentation/devicetree/bindings/power/wakeup-source.txt index 697333a56d5e..75bc20b95688 100644 --- a/Documentation/devicetree/bindings/power/wakeup-source.txt +++ b/Documentation/devicetree/bindings/power/wakeup-source.txt @@ -3,16 +3,20 @@ Specifying wakeup capability for devices Any device nodes ---------------- -Nodes that describe devices which has wakeup capability must contain an +Nodes that describe devices which have wakeup capability may contain a "wakeup-source" boolean property. -Also, if device is marked as a wakeup source, then all the primary -interrupt(s) can be used as wakeup interrupt(s). +If the device is marked as a wakeup-source, interrupt wake capability depends +on the device specific "interrupt-names" property. If no interrupts are labeled +as wake capable, then it is up to the device to determine which interrupts can +wake the system. -However if the devices have dedicated interrupt as the wakeup source -then they need to specify/identify the same using device specific -interrupt name. In such cases only that interrupt can be used as wakeup -interrupt. +However if a device has a dedicated interrupt as the wakeup source, then it +needs to specify/identify it using a device specific interrupt name. In such +cases only that interrupt can be used as a wakeup interrupt. + +While various legacy interrupt names exist, new devices should use "wakeup" as +the canonical interrupt name. List of legacy properties and respective binding document --------------------------------------------------------- diff --git a/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml b/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml index 0221397eb51e..f825ee9efd81 100644 --- a/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml +++ b/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml @@ -62,8 +62,8 @@ examples: regulator-name = "buck1"; regulator-min-microvolt = <600000>; regulator-max-microvolt = <2187500>; - regulator-min-microamp = <3800000>; - regulator-max-microamp = <6800000>; + regulator-min-microamp = <3800000>; + regulator-max-microamp = <6800000>; regulator-boot-on; }; diff --git a/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml b/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml index 6de5b027f990..0d34af98403f 100644 --- a/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml +++ b/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml @@ -98,8 +98,8 @@ examples: regulator-name = "buck1"; regulator-min-microvolt = <400000>; regulator-max-microvolt = <3587500>; - regulator-min-microamp = <460000>; - regulator-max-microamp = <7600000>; + regulator-min-microamp = <460000>; + regulator-max-microamp = <7600000>; regulator-boot-on; mps,buck-ovp-disable; mps,buck-phase-delay = /bits/ 8 <2>; diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml index 30632efdad8b..df36e29d974c 100644 --- a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml @@ -113,10 +113,10 @@ examples: }; imx7d-cm4 { - compatible = "fsl,imx7d-cm4"; - memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>; - syscon = <&src>; - clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; + compatible = "fsl,imx7d-cm4"; + memory-region = <&m4_reserved_sysmem1>, <&m4_reserved_sysmem2>; + syscon = <&src>; + clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; }; - | diff --git a/Documentation/devicetree/bindings/security/tpm/google,cr50.txt b/Documentation/devicetree/bindings/security/tpm/google,cr50.txt deleted file mode 100644 index cd69c2efdd37..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/google,cr50.txt +++ /dev/null @@ -1,19 +0,0 @@ -* H1 Secure Microcontroller with Cr50 Firmware on SPI Bus. - -H1 Secure Microcontroller running Cr50 firmware provides several -functions, including TPM-like functionality. It communicates over -SPI using the FIFO protocol described in the PTP Spec, section 6. - -Required properties: -- compatible: Should be "google,cr50". -- spi-max-frequency: Maximum SPI frequency. - -Example: - -&spi0 { - tpm@0 { - compatible = "google,cr50"; - reg = <0>; - spi-max-frequency = <800000>; - }; -}; diff --git a/Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt b/Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt deleted file mode 100644 index d89f99971368..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/ibmvtpm.txt +++ /dev/null @@ -1,41 +0,0 @@ -* Device Tree Bindings for IBM Virtual Trusted Platform Module(vtpm) - -Required properties: - -- compatible : property name that conveys the platform architecture - identifiers, as 'IBM,vtpm' -- device_type : specifies type of virtual device -- interrupts : property specifying the interrupt source number and - sense code associated with this virtual I/O Adapters -- ibm,my-drc-index : integer index for the connector between the device - and its parent - present only if Dynamic - Reconfiguration(DR) Connector is enabled -- ibm,#dma-address-cells: specifies the number of cells that are used to - encode the physical address field of dma-window - properties -- ibm,#dma-size-cells : specifies the number of cells that are used to - encode the size field of dma-window properties -- ibm,my-dma-window : specifies DMA window associated with this virtual - IOA -- ibm,loc-code : specifies the unique and persistent location code - associated with this virtual I/O Adapters -- linux,sml-base : 64-bit base address of the reserved memory allocated - for the firmware event log -- linux,sml-size : size of the memory allocated for the firmware event log - -Example (IBM Virtual Trusted Platform Module) ---------------------------------------------- - - vtpm@30000003 { - ibm,#dma-size-cells = <0x2>; - compatible = "IBM,vtpm"; - device_type = "IBM,vtpm"; - ibm,my-drc-index = <0x30000003>; - ibm,#dma-address-cells = <0x2>; - linux,sml-base = <0xc60e 0x0>; - interrupts = <0xa0003 0x0>; - ibm,my-dma-window = <0x10000003 0x0 0x0 0x0 0x10000000>; - ibm,loc-code = "U8286.41A.10082DV-V3-C3"; - reg = <0x30000003>; - linux,sml-size = <0xbce10200>; - }; diff --git a/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt b/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt deleted file mode 100644 index 0dc121b6eace..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt +++ /dev/null @@ -1,34 +0,0 @@ -* STMicroelectronics SAS. ST33ZP24 TPM SoC - -Required properties: -- compatible: Should be "st,st33zp24-i2c". -- clock-frequency: I²C work frequency. -- reg: address on the bus - -Optional ST33ZP24 Properties: -- interrupts: GPIO interrupt to which the chip is connected -- lpcpd-gpios: Output GPIO pin used for ST33ZP24 power management D1/D2 state. -If set, power must be present when the platform is going into sleep/hibernate mode. - -Optional SoC Specific Properties: -- pinctrl-names: Contains only one value - "default". -- pintctrl-0: Specifies the pin control groups used for this controller. - -Example (for ARM-based BeagleBoard xM with ST33ZP24 on I2C2): - -&i2c2 { - - - st33zp24: st33zp24@13 { - - compatible = "st,st33zp24-i2c"; - - reg = <0x13>; - clock-frequency = <400000>; - - interrupt-parent = <&gpio5>; - interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; - - lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>; - }; -}; diff --git a/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt b/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt deleted file mode 100644 index 37198971f17b..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt +++ /dev/null @@ -1,32 +0,0 @@ -* STMicroelectronics SAS. ST33ZP24 TPM SoC - -Required properties: -- compatible: Should be "st,st33zp24-spi". -- spi-max-frequency: Maximum SPI frequency (<= 10000000). - -Optional ST33ZP24 Properties: -- interrupts: GPIO interrupt to which the chip is connected -- lpcpd-gpios: Output GPIO pin used for ST33ZP24 power management D1/D2 state. -If set, power must be present when the platform is going into sleep/hibernate mode. - -Optional SoC Specific Properties: -- pinctrl-names: Contains only one value - "default". -- pintctrl-0: Specifies the pin control groups used for this controller. - -Example (for ARM-based BeagleBoard xM with ST33ZP24 on SPI4): - -&mcspi4 { - - - st33zp24@0 { - - compatible = "st,st33zp24-spi"; - - spi-max-frequency = <10000000>; - - interrupt-parent = <&gpio5>; - interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; - - lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>; - }; -}; diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt deleted file mode 100644 index a65d7b71e81a..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt +++ /dev/null @@ -1,26 +0,0 @@ -* Device Tree Bindings for I2C based Trusted Platform Module(TPM) - -Required properties: - -- compatible : 'manufacturer,model', eg. nuvoton,npct650 -- label : human readable string describing the device, eg. "tpm" -- linux,sml-base : 64-bit base address of the reserved memory allocated for - the firmware event log -- linux,sml-size : size of the memory allocated for the firmware event log - -Optional properties: - -- powered-while-suspended: present when the TPM is left powered on between - suspend and resume (makes the suspend/resume - callbacks do nothing). - -Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C) ----------------------------------------------------------- - -tpm@57 { - reg = <0x57>; - label = "tpm"; - compatible = "nuvoton,npct650", "nuvoton,npct601"; - linux,sml-base = <0x7f 0xfd450000>; - linux,sml-size = <0x10000>; -}; diff --git a/Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt b/Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt deleted file mode 100644 index 7c6304426da1..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt +++ /dev/null @@ -1,25 +0,0 @@ -Trusted Computing Group MMIO Trusted Platform Module - -The TCG defines multi vendor standard for accessing a TPM chip, this -is the standard protocol defined to access the TPM via MMIO. Typically -this interface will be implemented over Intel's LPC bus. - -Refer to the 'TCG PC Client Specific TPM Interface Specification (TIS)' TCG -publication for the specification. - -Required properties: - -- compatible: should contain a string below for the chip, followed by - "tcg,tpm-tis-mmio". Valid chip strings are: - * "atmel,at97sc3204" -- reg: The location of the MMIO registers, should be at least 0x5000 bytes -- interrupts: An optional interrupt indicating command completion. - -Example: - - tpm_tis@90000 { - compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio"; - reg = <0x90000 0x5000>; - interrupt-parent = <&EIC0>; - interrupts = <1 2>; - }; diff --git a/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt b/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt deleted file mode 100644 index b800667da92b..000000000000 --- a/Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt +++ /dev/null @@ -1,23 +0,0 @@ -Required properties: -- compatible: should be one of the following - "st,st33htpm-spi" - "infineon,slb9670" - "tcg,tpm_tis-spi" -- spi-max-frequency: Maximum SPI frequency (depends on TPMs). - -Optional SoC Specific Properties: -- pinctrl-names: Contains only one value - "default". -- pintctrl-0: Specifies the pin control groups used for this controller. - -Example (for ARM-based BeagleBoard xM with TPM_TIS on SPI4): - -&mcspi4 { - - - tpm_tis@0 { - - compatible = "tcg,tpm_tis-spi"; - - spi-max-frequency = <10000000>; - }; -}; diff --git a/Documentation/devicetree/bindings/tpm/google,cr50.yaml b/Documentation/devicetree/bindings/tpm/google,cr50.yaml new file mode 100644 index 000000000000..9302e12e9fc7 --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/google,cr50.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/google,cr50.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Google Security Chip H1 (running Cr50 firmware) + +maintainers: + - Andrey Pronin <apronin@chromium.org> + +description: | + Google has designed a family of security chips called "Titan". + One member is the H1 built into Chromebooks and running Cr50 firmware: + https://www.osfc.io/2018/talks/google-secure-microcontroller-and-ccd-closed-case-debugging/ + + The chip provides several functions, including TPM 2.0 like functionality. + It communicates over SPI or I²C using the FIFO protocol described in the + TCG PC Client Platform TPM Profile Specification for TPM 2.0 (PTP), sec 6: + https://trustedcomputinggroup.org/resource/pc-client-platform-tpm-profile-ptp-specification/ + +properties: + compatible: + const: google,cr50 + +allOf: + - $ref: tpm-common.yaml# + +anyOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - $ref: tcg,tpm-tis-i2c.yaml#/properties/reg + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + tpm@0 { + reg = <0>; + compatible = "google,cr50"; + spi-max-frequency = <800000>; + }; + }; + + - | + #include <dt-bindings/interrupt-controller/irq.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + + tpm@50 { + compatible = "google,cr50"; + reg = <0x50>; + interrupts-extended = <&pio 88 IRQ_TYPE_EDGE_FALLING>; + pinctrl-names = "default"; + pinctrl-0 = <&cr50_int>; + }; + }; diff --git a/Documentation/devicetree/bindings/tpm/ibm,vtpm.yaml b/Documentation/devicetree/bindings/tpm/ibm,vtpm.yaml new file mode 100644 index 000000000000..50a3fd31241c --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/ibm,vtpm.yaml @@ -0,0 +1,104 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/ibm,vtpm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: IBM Virtual Trusted Platform Module (vTPM) + +maintainers: + - Nayna Jain <nayna@linux.ibm.com> + +description: | + Virtual TPM is used on IBM POWER7+ and POWER8 systems running POWERVM. + It is supported through the adjunct partition with firmware release 740 + or higher. With vTPM support, each lpar is able to have its own vTPM + without the physical TPM hardware. The TPM functionality is provided by + communicating with the vTPM adjunct partition through Hypervisor calls + (Hcalls) and Command/Response Queue (CRQ) commands. + +properties: + compatible: + enum: + - IBM,vtpm + - IBM,vtpm20 + + device_type: + description: + type of virtual device + enum: + - IBM,vtpm + - IBM,vtpm20 + + reg: + maxItems: 1 + + 'ibm,#dma-address-cells': + description: + number of cells that are used to encode the physical address field of + dma-window properties + $ref: /schemas/types.yaml#/definitions/uint32-array + + 'ibm,#dma-size-cells': + description: + number of cells that are used to encode the size field of + dma-window properties + $ref: /schemas/types.yaml#/definitions/uint32-array + + ibm,my-dma-window: + description: + DMA window associated with this virtual I/O Adapter + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 5 + maxItems: 5 + + ibm,my-drc-index: + description: + integer index for the connector between the device and its parent; + present only if Dynamic Reconfiguration (DR) Connector is enabled + $ref: /schemas/types.yaml#/definitions/uint32 + + ibm,loc-code: + description: + unique and persistent location code associated with this virtual + I/O Adapter + $ref: /schemas/types.yaml#/definitions/string + +required: + - compatible + - device_type + - reg + - interrupts + - ibm,#dma-address-cells + - ibm,#dma-size-cells + - ibm,my-dma-window + - ibm,my-drc-index + - ibm,loc-code + - linux,sml-base + - linux,sml-size + +allOf: + - $ref: tpm-common.yaml# + +unevaluatedProperties: false + +examples: + - | + soc { + #address-cells = <1>; + #size-cells = <0>; + + tpm@30000003 { + compatible = "IBM,vtpm"; + device_type = "IBM,vtpm"; + reg = <0x30000003>; + interrupts = <0xa0003 0x0>; + ibm,#dma-address-cells = <0x2>; + ibm,#dma-size-cells = <0x2>; + ibm,my-dma-window = <0x10000003 0x0 0x0 0x0 0x10000000>; + ibm,my-drc-index = <0x30000003>; + ibm,loc-code = "U8286.41A.10082DV-V3-C3"; + linux,sml-base = <0xc60e 0x0>; + linux,sml-size = <0xbce10200>; + }; + }; diff --git a/Documentation/devicetree/bindings/tpm/microsoft,ftpm.yaml b/Documentation/devicetree/bindings/tpm/microsoft,ftpm.yaml new file mode 100644 index 000000000000..fdb81968f03d --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/microsoft,ftpm.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/microsoft,ftpm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microsoft firmware-based Trusted Platform Module (fTPM) + +maintainers: + - Thirupathaiah Annapureddy <thiruan@microsoft.com> + - Sasha Levin <sashal@kernel.org> + +description: | + Commodity CPU architectures, such as ARM and Intel CPUs, have started to + offer trusted computing features in their CPUs aimed at displacing dedicated + trusted hardware. Unfortunately, these CPU architectures raise serious + challenges to building trusted systems because they omit providing secure + resources outside the CPU perimeter. + + Microsoft's firmware-based TPM 2.0 (fTPM) leverages ARM TrustZone to overcome + these challenges and provide software with security guarantees similar to + those of dedicated trusted hardware. + + https://www.microsoft.com/en-us/research/publication/ftpm-software-implementation-tpm-chip/ + https://github.com/Microsoft/ms-tpm-20-ref/tree/main/Samples/ARM32-FirmwareTPM + +properties: + compatible: + const: microsoft,ftpm + +required: + - compatible + - linux,sml-base + - linux,sml-size + +allOf: + - $ref: tpm-common.yaml# + +unevaluatedProperties: false + +examples: + - | + tpm { + compatible = "microsoft,ftpm"; + linux,sml-base = <0x0 0xc0000000>; + linux,sml-size = <0x10000>; + }; diff --git a/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml b/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml new file mode 100644 index 000000000000..3ab4434b7352 --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-i2c.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: I²C-attached Trusted Platform Module conforming to TCG TIS specification + +maintainers: + - Lukas Wunner <lukas@wunner.de> + +description: | + The Trusted Computing Group (TCG) has defined a multi-vendor standard + for accessing a TPM chip. It can be transported over various buses, + one of them being I²C. The standard is named: + TCG PC Client Specific TPM Interface Specification (TIS) + https://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-specification-tis/ + + The I²C interface was not originally part of the standard, but added + in 2017 with a separate document: + TCG PC Client Platform TPM Profile Specification for TPM 2.0 (PTP) + https://trustedcomputinggroup.org/resource/pc-client-platform-tpm-profile-ptp-specification/ + + Recent TPM 2.0 chips conform to this generic interface, others use a + vendor-specific I²C interface. + +properties: + compatible: + oneOf: + - description: Generic TPM 2.0 chips conforming to TCG PTP interface + items: + - enum: + - infineon,slb9673 + - nuvoton,npct75x + - const: tcg,tpm-tis-i2c + + - description: TPM 1.2 and 2.0 chips with vendor-specific I²C interface + items: + - enum: + - atmel,at97sc3204t # TPM 1.2 + - infineon,slb9635tt # TPM 1.2 (maximum 100 kHz) + - infineon,slb9645tt # TPM 1.2 (maximum 400 kHz) + - infineon,tpm_i2c_infineon # TPM 1.2 + - nuvoton,npct501 # TPM 1.2 + - nuvoton,npct601 # TPM 2.0 + - st,st33zp24-i2c # TPM 2.0 + - winbond,wpct301 # TPM 1.2 + + reg: + description: address of TPM on the I²C bus + +allOf: + - $ref: tpm-common.yaml# + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + tpm@57 { + label = "tpm"; + compatible = "nuvoton,npct601"; + reg = <0x57>; + linux,sml-base = <0x7f 0xfd450000>; + linux,sml-size = <0x10000>; + }; + }; + + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + + tpm@13 { + reg = <0x13>; + compatible = "st,st33zp24-i2c"; + interrupt-parent = <&gpio5>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>; + }; + }; diff --git a/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-mmio.yaml b/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-mmio.yaml new file mode 100644 index 000000000000..87bce0692129 --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/tcg,tpm-tis-mmio.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/tcg,tpm-tis-mmio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MMIO-accessed Trusted Platform Module conforming to TCG TIS specification + +maintainers: + - Lukas Wunner <lukas@wunner.de> + +description: | + The Trusted Computing Group (TCG) has defined a multi-vendor standard + for accessing a TPM chip. It can be transported over various buses, + one of them being LPC (via MMIO). The standard is named: + TCG PC Client Specific TPM Interface Specification (TIS) + https://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-specification-tis/ + +properties: + compatible: + items: + - enum: + - at97sc3201 + - atmel,at97sc3204 + - socionext,synquacer-tpm-mmio + - const: tcg,tpm-tis-mmio + + reg: + description: + location and length of the MMIO registers, length should be + at least 0x5000 bytes + +allOf: + - $ref: tpm-common.yaml# + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + tpm@90000 { + compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio"; + reg = <0x90000 0x5000>; + interrupt-parent = <&EIC0>; + interrupts = <1 2>; + }; diff --git a/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml b/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml new file mode 100644 index 000000000000..c3413b47ac3d --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/tcg,tpm_tis-spi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SPI-attached Trusted Platform Module conforming to TCG TIS specification + +maintainers: + - Lukas Wunner <lukas@wunner.de> + +description: | + The Trusted Computing Group (TCG) has defined a multi-vendor standard + for accessing a TPM chip. It can be transported over various buses, + one of them being SPI. The standard is named: + TCG PC Client Specific TPM Interface Specification (TIS) + https://trustedcomputinggroup.org/resource/pc-client-work-group-pc-client-specific-tpm-interface-specification-tis/ + +properties: + compatible: + items: + - enum: + - infineon,slb9670 + - st,st33htpm-spi + - st,st33zp24-spi + - const: tcg,tpm_tis-spi + +allOf: + - $ref: tpm-common.yaml# + - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + contains: + const: st,st33zp24-spi + then: + properties: + spi-max-frequency: + maximum: 10000000 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + tpm@0 { + reg = <0>; + compatible = "infineon,slb9670", "tcg,tpm_tis-spi"; + spi-max-frequency = <10000000>; + }; + }; + + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + tpm@0 { + reg = <0>; + compatible = "st,st33zp24-spi", "tcg,tpm_tis-spi"; + spi-max-frequency = <10000000>; + interrupt-parent = <&gpio5>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>; + }; + }; diff --git a/Documentation/devicetree/bindings/tpm/tpm-common.yaml b/Documentation/devicetree/bindings/tpm/tpm-common.yaml new file mode 100644 index 000000000000..90390624a8be --- /dev/null +++ b/Documentation/devicetree/bindings/tpm/tpm-common.yaml @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/tpm/tpm-common.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Trusted Platform Module common properties + +maintainers: + - Lukas Wunner <lukas@wunner.de> + +properties: + $nodename: + pattern: '^tpm(@[0-9a-f]+)?$' + + interrupts: + description: indicates command completion + maxItems: 1 + + label: + description: human readable string describing the device, e.g. "tpm" + + linux,sml-base: + description: + base address of reserved memory allocated for firmware event log + $ref: /schemas/types.yaml#/definitions/uint64 + + linux,sml-size: + description: + size of reserved memory allocated for firmware event log + $ref: /schemas/types.yaml#/definitions/uint32 + + memory-region: + description: reserved memory allocated for firmware event log + maxItems: 1 + + powered-while-suspended: + description: + present when the TPM is left powered on between suspend and resume + (makes the suspend/resume callbacks do nothing) + type: boolean + + resets: + description: Reset controller to reset the TPM + $ref: /schemas/types.yaml#/definitions/phandle + + reset-gpios: + description: Output GPIO pin to reset the TPM + maxItems: 1 + +# must always have both linux,sml-base and linux,sml-size +dependentRequired: + linux,sml-base: ['linux,sml-size'] + linux,sml-size: ['linux,sml-base'] + +# must only have either memory-region or linux,sml-base +# as well as either resets or reset-gpios +dependentSchemas: + memory-region: + properties: + linux,sml-base: false + linux,sml-base: + properties: + memory-region: false + resets: + properties: + reset-gpios: false + reset-gpios: + properties: + resets: false + +allOf: + - if: + properties: + compatible: + contains: + pattern: '^st,st33zp24' + then: + properties: + lpcpd-gpios: + description: + Output GPIO pin used for ST33ZP24 power management of D1/D2 state. + If set, power must be present when the platform is going into + sleep/hibernate mode. + maxItems: 1 + +additionalProperties: true diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml index a5fb2fa22026..21d1f066f875 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -49,8 +49,6 @@ properties: - ams,iaq-core # i2c serial eeprom (24cxx) - at,24c08 - # i2c trusted platform module (TPM) - - atmel,at97sc3204t # ATSHA204 - i2c h/w symmetric crypto module - atmel,atsha204 # ATSHA204A - i2c h/w symmetric crypto module @@ -151,12 +149,6 @@ properties: - infineon,ir38263 # Infineon IRPS5401 Voltage Regulator (PMIC) - infineon,irps5401 - # Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz) - - infineon,slb9635tt - # Infineon SLB9645 I2C TPM (new protocol, max 400khz) - - infineon,slb9645tt - # Infineon SLB9673 I2C TPM 2.0 - - infineon,slb9673 # Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor - infineon,tlv493d-a1b6 # Infineon Multi-phase Digital VR Controller xdpe11280 @@ -307,10 +299,6 @@ properties: - national,lm85 # I2C ±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator - national,lm92 - # i2c trusted platform module (TPM) - - nuvoton,npct501 - # i2c trusted platform module (TPM2) - - nuvoton,npct601 # Nuvoton Temperature Sensor - nuvoton,w83773g # OKI ML86V7667 video decoder @@ -355,8 +343,6 @@ properties: - silabs,si7020 # Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply - skyworks,sky81452 - # Socionext SynQuacer TPM MMIO module - - socionext,synquacer-tpm-mmio # SparkFun Qwiic Joystick (COM-15168) with i2c interface - sparkfun,qwiic-joystick # i2c serial eeprom (24cxx) @@ -411,8 +397,6 @@ properties: - winbond,w83793 # Vicor Corporation Digital Supervisor - vicor,pli1209bc - # i2c trusted platform module (TPM) - - winbond,wpct301 required: - compatible diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 871f38fef3c4..02aaa1f538b2 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -1295,6 +1295,8 @@ patternProperties: description: Skyworks Solutions, Inc. "^smartlabs,.*": description: SmartLabs LLC + "^smi,.*": + description: Silicon Motion Technology Corporation "^smsc,.*": description: Standard Microsystems Corporation "^snps,.*": |